FaceTime and Messages Login Issues
After updating to Big Sur (or v11.0.1), my FaceTime and Messages are not able to login with my current Apple ID (it's ok when using other apple id account).
I have just changed my Apple ID account's password today, I wonder if this affect to FaceTime or Message? I have tried to check the System Status but all of them are available. I've also tried to Reinstall Mac OS Big Sur, Reset NV RAM, Reset Key Chain, but nothing works for me. I have spent for 5 hours searching my problem on the Internet, but no ways.
A little more details, with FaceTime, after filling out the login form, it's just loading like the figure below. Then, it returned to the initial login form without any warning or error detection.
After click on Next button
After loading for 5s, it returned to the login screen
About Messages, when I launch it, a login form will appear. Although having login successfully, this form will continue to show up after 5s after logged in. In addition, during 5s after logged in, I try to send message but an error has occurred (as the figure below).
MacBook Pro 16″, macOS 11.0